Answer:

Step-by-step explanation:
First simplify the equation.
Now multiply both sides by 3.
I hope it helps you. Please choose my answer as the BRAINLIEST.
To add or subtract fractions , their denominator ( The one beneath the numerator, the one that divides the numerator ).
If they both terms have the same denominators you just have to add or subtract their numerators and stay with your denominator:
example: 3/5 + 4/5 = 7/5
2/3 - 1/3 = 1/3
But if the terms you are adding or subtracting do NOT have the same denominator , you have to make their denominator equal by equivalency :
Example : 2/3 + 1/6
I cant add 2/3 to 1/6 because they have different denominators. But if I multiply 2/3 by 2/2 it wil be 4/6:
4/6 + 1/6 = 5/6 !!
As 2/2 = 1 , I did not change the value but I changed the numerator and denominator of 2/3 :
If I multiply the numerator of a fraction by any number , but I do the same thing to the denominator, It creates a equivalency, where I dont change the actual values of the fraction.
I hope you understood my brief explanation , and please consider marking this awnser as Branliest if you think it deserves it. Thank you ! :)
Answer:
what?
Step-by-step explanation:
Do you need help with something?
If 30% were perfect, 70% were not perfect. So we know that 70% of the total number of photographs is 210.
p(70/100)=210 multiply both sides by 100
70p=21000 divide both sides by 70
p=300
So there are 300 photographs in all.
I believe the price for one box with the coupon will be $3.15. This is because 4.50 * .30 = 1.35
4.50 - 1.35 = 3.15 Thus the discounted price will be $3.15